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EnglishLinear dichroic properties of polyethylene films containing a dispersion of terthiophene-based chromophore molecules are investigated by using a scanning near-field optical microscope (SNOM). The polarization-modulation technique implemented in our SNOM provides quantitative information on the dichroic ratio of the samples with sub-wavelength space resolution. Optically active domains are identified and their morphology is analysed as a function of the film fabrication parameters, e.g., the drawing ratio and the kind of dispersed chromophore mixture. These investigations complement conventional polarimetry analysis by adding nanometre-scale information on the spatial distribution of the chromophore molecules and their mutual alignment with the host polymer chains.
| Autori interni: | ||
| Autori: | Ambrosio A; Alderighi M; Labardi M; Pardi L; Fuso F; Allegrini M; Nannizzi S; Pucci A; Ruggeri G | |
| Titolo: | Near-field optical microscopy of polymer-based films with dispersed terthiophene chromophores for polarizer applications | |
| Anno del prodotto: | 2004 | |
| Digital Object Identifier (DOI): | 10.1088/0957-4484/15/4/029 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11568/199135
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